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yaml
---
r: 99024
b: refs/heads/master
c: c17cf06
h: refs/heads/master
v: v3
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Takashi Iwai authored and Jaroslav Kysela committed May 19, 2008
1 parent ee2f0ad commit 31b9e98
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2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f3e9d5d1fd6a164611043c053de585a35d76d6a9
refs/heads/master: c17cf06bfc4417a79d452c266e819c510f6a8344
62 changes: 0 additions & 62 deletions trunk/sound/core/memalloc.c
Original file line number Diff line number Diff line change
Expand Up @@ -79,68 +79,6 @@ struct snd_mem_list {
#define snd_assert(expr, args...) /**/
#endif

/*
* Hacks
*/

#if defined(__i386__)
/*
* A hack to allocate large buffers via dma_alloc_coherent()
*
* since dma_alloc_coherent always tries GFP_DMA when the requested
* pci memory region is below 32bit, it happens quite often that even
* 2 order of pages cannot be allocated.
*
* so in the following, we allocate at first without dma_mask, so that
* allocation will be done without GFP_DMA. if the area doesn't match
* with the requested region, then realloate with the original dma_mask
* again.
*
* Really, we want to move this type of thing into dma_alloc_coherent()
* so dma_mask doesn't have to be messed with.
*/

static void *snd_dma_hack_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle,
gfp_t flags)
{
void *ret;
u64 dma_mask, coherent_dma_mask;

if (dev == NULL || !dev->dma_mask)
return dma_alloc_coherent(dev, size, dma_handle, flags);
dma_mask = *dev->dma_mask;
coherent_dma_mask = dev->coherent_dma_mask;
*dev->dma_mask = 0xffffffff; /* do without masking */
dev->coherent_dma_mask = 0xffffffff; /* do without masking */
ret = dma_alloc_coherent(dev, size, dma_handle, flags);
*dev->dma_mask = dma_mask; /* restore */
dev->coherent_dma_mask = coherent_dma_mask; /* restore */
if (ret) {
/* obtained address is out of range? */
if (((unsigned long)*dma_handle + size - 1) & ~dma_mask) {
/* reallocate with the proper mask */
dma_free_coherent(dev, size, ret, *dma_handle);
ret = dma_alloc_coherent(dev, size, dma_handle, flags);
}
} else {
/* wish to success now with the proper mask... */
if (dma_mask != 0xffffffffUL) {
/* allocation with GFP_ATOMIC to avoid the long stall */
flags &= ~GFP_KERNEL;
flags |= GFP_ATOMIC;
ret = dma_alloc_coherent(dev, size, dma_handle, flags);
}
}
return ret;
}

/* redefine dma_alloc_coherent for some architectures */
#undef dma_alloc_coherent
#define dma_alloc_coherent snd_dma_hack_alloc_coherent

#endif /* arch */

/*
*
* Generic memory allocators
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